For a definition of sustainable food systems, see:
University of California Sustainable Agriculture Research and Extension Program: What is a Sustainable Community Food System?
For an introduction to this topic, see: "Sustainable Agriculture: Definition and Terms." Gold, Mary. Alternative Farming Systems Information Center. Special Reference Briefs; 99-02, September 1999.
City Harvest is a unique partnership between PHS; the Philadelphia Prison System; SHARE, a food distribution network; and the Health Promotion Council of Southeastern Pennsylvania.
The community-based City Harvest network raises naturally grown vegetables and distributes them to Philadelphians who lack access or the means to purchase fresh produce. Read more.